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Periodontal disease affects nearly half of adults over 30 in the United States, and the research is consistent that most of that damage accumulates gradually, in the interdental spaces and along the gumline that manual and standard electric brushes chronically under-clean

doi: 10.3390/biomedicines12091936 17

A product at 85% purity means 15% of the mass is unknown impurities or degradation products, which changes effective dosing and introduces unknown safety variables

For example, in the Middle East-North Africa region, Jews had an older median age (32) than the regional median (24)

doi: 10.2174/138161212803582469